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Birnessite |
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Lanson B, Drits V A, Feng Q, Manceau A |
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American Mineralogist 87 (2002) 1662-1671 |
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Structure of synthetic Na-rich birnessite: Evidence for a triclinic |
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one-layer unit cell |
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_database_code_amcsd 0002932 |
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2.9513 2.9547 7.334 78.72 101.79 122.33 P-1 |
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atom x y z occ Biso |
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Mn-layer 0 0 0 .5 .5 |
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O-layer .3886 -.3733 .1396 1.0 |
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Na-Int .628 .476 .481 .182 2.0 |
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Wat-Int .290 -.819 .496 .272 2.0 |
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Nontronite |
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Manceau A, Chateigner D, Gates W P |
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Physics and Chemistry of Minerals 25 (1998) 347-365 |
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Polarized EXAFS, distance-valence least-squares modelling (DVLS), |
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and quantitative texture analysis approaches to the structural |
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refinement of Garfield nontronite |
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_database_code_amcsd 0008146 |
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5.277 9.14 9.78 90 101.0 90 C2/m |
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atom x y z occ |
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Na .5 0 .5 .5 |
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Fe 0 .667 0 |
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Si .431 .328 .288 .866 |
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Al .431 .328 .288 .134 |
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O1 .364 .313 .115 |
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O2 .489 .5 .330 |
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O3 .186 .731 .353 |
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OH4 .396 0 .115 |
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| Download AMC data (View Text File)
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Goethite |
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Hazemann J, Berar J, Manceau A |
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Materials Science Forum 79 (1991) 821-826 |
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Rietveld studies of the aluminium-iron substitution in synthetic |
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goethite |
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_cod_database_code 1008766 |
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_database_code_amcsd 0016643 |
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4.6188 9.9528 3.0236 90 90 90 Pbnm |
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atom x y z |
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Fe1 .0466 .8552 .25 |
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O1 .714 .2006 .25 |
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O2 .192 .0517 .25 |
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| Download AMC data (View Text File)
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View JMOL 3-D Structure
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Goethite |
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Hazemann J, Berar J, Manceau A |
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Materials Science Forum 79 (1991) 821-826 |
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Rietveld studies of the aluminium-iron substitution in synthetic |
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goethite |
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_cod_database_code 1008767 |
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_database_code_amcsd 0016644 |
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4.6158 9.9545 3.0233 90 90 90 Pbnm |
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atom x y z |
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Fe1 .0479 .8542 .75 |
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O1 .708 .1988 .75 |
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O2 .197 .0527 .75 |
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| Download AMC data (View Text File)
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View JMOL 3-D Structure
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Goethite |
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Hazemann J, Berar J, Manceau A |
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Materials Science Forum 79 (1991) 821-826 |
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Rietveld studies of the aluminium-iron substitution in synthetic |
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goethite |
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_cod_database_code 1008768 |
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_database_code_amcsd 0016645 |
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4.6048 9.9595 3.023 90 90 90 Pbnm |
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atom x y z |
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Fe1 .0477 .8539 .25 |
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O1 .708 .1996 .25 |
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O2 .204 .0531 .25 |
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| Download AMC data (View Text File)
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View JMOL 3-D Structure
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Diaspore |
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Hazemann J, Berar J, Manceau A |
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Materials Science Forum 79 (1991) 821-826 |
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Rietveld studies of the aluminium-iron substitution in synthetic |
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goethite |
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_cod_database_code 1008769 |
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_database_code_amcsd 0016646 |
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4.4031 9.4252 2.8452 90 90 90 Pbnm |
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atom x y z |
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Al1 .045 .8549 .25 |
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O1 .713 .199 .25 |
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O2 .2 .0537 .25 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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